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Ballycummisk Mine, Audley Mines, Ballydehob, Mizen Peninsula, Co. Cork, Irelandi
Regional Level Types
Ballycummisk MineMine
Audley MinesGroup of Mines
Ballydehob- not defined -
Mizen PeninsulaPeninsula
Co. Cork- not defined -
IrelandCountry

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Latitude & Longitude (WGS84): 51° 32' 5'' North , 9° 28' 34'' West
Latitude & Longitude (decimal): 51.53472,-9.47611
GeoHash:G#: gc1m0meew
Locality type:Mine
Köppen climate type:Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Ballydehob271 (2017)3.1km
Schull658 (2013)5.1km
Baltimore347 (2015)9.3km
Durrus334 (2017)10.3km
Skibbereen2,098 (2012)14.6km


Irish grid ref: V978323

An MHTI field trip to the site in August 2005 surveyed the area and determined that there were no accessible underground workings.
Presently (26th July 2009), the adit drive is still visible albeit overgrown and draining water. However it is collapsed in two places along its path and the lowest shaft is caved in.
Behind the main spoil heap there is a second open shaft, however it is rubbish filled.
At the top of the hill at the bend in the road there is a capped shaft which is fenced off.

The spoil heap contains the best example of regional Cu mineralization. The site should also be noted for well formed tetrahedrite (primary ore) crystals albeit largely micro in nature.


Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent
British IslesGroup of Islands
Ireland (island)Island

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


22 valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

Arsenopyrite
Formula: FeAsS
Reference: Barry Flannery (personal observation)
Azurite
Formula: Cu3(CO3)2(OH)2
Habit: None
Colour: Blue
Description: Found on oxidising Sulphides as thin strong blue coatings.
Reference: Barry Flannery (personal observations)
Baryte
Formula: BaSO4
Habit: Tabular
Colour: White
Description: Significant amounts of massive material can be found on the spoil heap. Micaceous hematite is often found in conjunction with massive barite. Rarely tabular crystals can be found.
Reference: Barry Flannery personal observation
Bismuth
Formula: Bi
Description: Identified by thin-section ore microscopy
Reference: The genesis of Cu-bearing quartz veins by metamorphic remobilization from stratiform red bed deposits, SW County Cork, Ireland Ni Wen ~, A. J. Boyce 2, A. E. Fallick z, J. R. Ashworth ~, and R. A. Ixer
Bismuthinite
Formula: Bi2S3
Description: Identified by thin-section ore microscopy.
Reference: The genesis of Cu-bearing quartz veins by metamorphic remobilization from stratiform red bed deposits, SW County Cork, Ireland Ni Wen ~, A. J. Boyce 2, A. E. Fallick z, J. R. Ashworth ~, and R. A. Ixer
Bornite
Formula: Cu5FeS4
Habit: None
Colour: Grey
Description: Found occasionaly associated with Barite
Reference: Cornwall
Calcite
Formula: CaCO3
Habit: Scalenohedral
Colour: Clear to white to milky
Description: Found in varying crystal forms. Quartz and scalenohedral calcite are sometimes found lining vuggy slate specimens. Other specimens show rhombohedral blade like crystals often associated with massive quartz and sulfide.
Reference: Barry Flannery personal observation
Chalcocite
Formula: Cu2S
Reference: Sir Arthur Russell (personal collection)
Chalcopyrite
Formula: CuFeS2
Habit: Modified crystals
Colour: Gold
Description: Crystals are rare but common in massive form usually associated with massive quartz and barite.
Reference: Barry Flannery personal observation
'Chlorite Group'
Colour: Green
Description: Occasionally found as spongy green masses associated with quartz or else as inclusions in quartz crystals.
Reference: Barry Flannery (personal collection)
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Dr Richard Unitt collection
Dolomite
Formula: CaMg(CO3)2
Habit: Rhombohedral
Colour: Brown
Description: Seldom found unoxidised. Hard to distinguish from siderite, often accompanies massive quartz. Chalky brown texture when found in spoil.
Reference: Barry Flannery personal observation
Ferrimolybdite
Formula: Fe2(MoO4)3 · nH2O
Habit: None
Colour: Yellow encrustations
Description: Yellow powdery coating on molybdenite
Reference: G. Ryback (1991). Barry Flannery (personal observation). Stephen Moreton (personal communication)
Gold
Formula: Au
Description: Detected by thin-section ore microscopy.
Reference: The genesis of Cu-bearing quartz veins by metamorphic remobilization from stratiform red bed deposits, SW County Cork, Ireland Ni Wen ~, A. J. Boyce 2, A. E. Fallick z, J. R. Ashworth ~, and R. A. Ixer
Gypsum
Formula: CaSO4 · 2H2O
Habit: Needle-like
Colour: Colourless
Description: Found as post mining coatings on sulfide material.
Reference: Barry Flannery personal collection
Hematite
Formula: Fe2O3
Colour: Brown
Description: Micaceous hematite is abundant throughout the spoil heap and often associated with white massive baryte or quartz.
Reference: Barry Flannery personal observations
Hematite var: Specularite
Formula: Fe2O3
Habit: Bladed crystals in ball form
Colour: Black
Description: Usually found as micro rosettes on quartz crystals, often times in the presence of tetrahedrite. Larger masses of bladed/rosette crystals are nearly always very badly oxidised.
Reference: Barry Flannery (Personal Collection)
'Limonite'
Formula: (Fe,O,OH,H2O)
Description: Found in association with oxidised sulfide material.
Reference: Barry Flannery (personal observation)
Magnetite
Formula: Fe2+Fe3+2O4
Description: Trace mineral, found during thin section ore microscopy.
Reference: The genesis of Cu-bearing quartz veins by metamorphic remobilization from stratiform red bed deposits, SW County Cork, Ireland Ni Wen ~, A. J. Boyce 2, A. E. Fallick z, J. R. Ashworth ~, and R. A. Ixer
Malachite
Formula: Cu2(CO3)(OH)2
Habit: Mammilations
Colour: Green
Description: Post mining staining on sulfide material due to spoil heap oxidation. Occasionally mammilated.
Reference: Barry Flannery personal observations
Marcasite
Formula: FeS2
Habit: Bi-Pyrimidal
Colour: Tin White on fresh break and dark metallic white (very dark nearly greyish but not quite) on tarnish (spoil heap form).
Description: Poor quality material showing small damaged bi-pyrimidal crystals enclosed by host rock.
Reference: Barry Flannery (Personal Collection)
Molybdenite
Formula: MoS2
Habit: None
Colour: Grey
Description: Found in massive form, always oxidised.
Reference: Barry Flannery (Personal Observation)
Pyrite
Formula: FeS2
Habit: Modified crystals
Colour: Tarnished when found on the spoil heap but can be easily reversed with an acid wash
Description: Crystals are rarely found and tend to be oxidised.
Reference: Barry Flannery (Personal Collection)
Quartz
Formula: SiO2
Habit: Prismatic
Colour: Clear to milky
Description: Primary gangue mineral. It should be noted that most of the crystallized sulfides are hosted in quartz vugs. Crystallization varies significantly. It is often times found lining cavities in the country rock as small but pretty druses of crystals. Much more commonly however it is found associated with massive quartz vein material.
Reference: Barry Flannery (Personal Communication)
Quartz var: Smoky Quartz
Formula: SiO2
Habit: Prismatic
Colour: Black
Description: Found as small prisms. Easily mistaken for chlorite included quartz.
Reference: Barry Flannery (Personal Collection)
Siderite
Formula: FeCO3
Habit: Rhombohedral
Colour: Brown-White-Clear
Description: Generally found as earthy-brown oxidised material in quartz. Occasionally well formed saddle-shaped crystals and rhombs are found albeit oxidised to a brown colour.
Reference: Barry Flannery (Personal Collection)
Tetrahedrite
Formula: Cu6[Cu4(Fe,Zn)2]Sb4S13
Habit: Tetrahedral
Colour: Green tarnish when oxidised. Metallic grey when fresh or cleaned with acid
Description: Tetrahedrite was the primary ore mined and can be found as oxidised lumps on the spoil heap. Occasionally found as well formed tetrahedral crystals and assemblages of crystals.
Reference: Barry Flannery personal collection

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Bismuth1.CA.05Bi
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Arsenopyrite ?2.EB.20FeAsS
Bismuthinite2.DB.05Bi2S3
Bornite2.BA.15Cu5FeS4
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Marcasite2.EB.10aFeS2
Molybdenite2.EA.30MoS2
Pyrite2.EB.05aFeS2
Tetrahedrite2.GB.05Cu6[Cu4(Fe,Zn)2]Sb4S13
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
var: Specularite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Azurite5.BA.05Cu3(CO3)2(OH)2
Calcite5.AB.05CaCO3
Dolomite5.AB.10CaMg(CO3)2
Malachite5.BA.10Cu2(CO3)(OH)2
Siderite5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Ferrimolybdite7.GB.30Fe2(MoO4)3 · nH2O
Gypsum7.CD.40CaSO4 · 2H2O
Group 9 - Silicates
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Semi-metals and non-metals
Bismuth1.3.1.4Bi
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
AmBnXp, with (m+n):p = 3:2
Bornite2.5.2.1Cu5FeS4
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 2:3
Bismuthinite2.11.2.3Bi2S3
AmBnXp, with (m+n):p = 1:2
Arsenopyrite ?2.12.4.1FeAsS
Marcasite2.12.2.1FeS2
Molybdenite2.12.10.1MoS2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
Tetrahedrite3.3.6.1Cu6[Cu4(Fe,Zn)2]Sb4S13
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 49 - HYDRATED MOLYBDATES AND TUNGSTATES
Hydrated Normal Molybdates and Tungstates
Ferrimolybdite49.2.1.1Fe2(MoO4)3 · nH2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-
Hematite
var: Specularite
-Fe2O3
'Limonite'-(Fe,O,OH,H2O)
Quartz
var: Smoky Quartz
-SiO2

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
H ClinochloreMg5Al(AlSi3O10)(OH)8
H MalachiteCu2(CO3)(OH)2
H AzuriteCu3(CO3)2(OH)2
H FerrimolybditeFe2(MoO4)3 · nH2O
H GypsumCaSO4 · 2H2O
CCarbon
C SideriteFeCO3
C MalachiteCu2(CO3)(OH)2
C AzuriteCu3(CO3)2(OH)2
C DolomiteCaMg(CO3)2
C CalciteCaCO3
OOxygen
O SideriteFeCO3
O Hematite (var: Specularite)Fe2O3
O QuartzSiO2
O Limonite(Fe,O,OH,H2O)
O Quartz (var: Smoky Quartz)SiO2
O ClinochloreMg5Al(AlSi3O10)(OH)8
O MalachiteCu2(CO3)(OH)2
O AzuriteCu3(CO3)2(OH)2
O BaryteBaSO4
O DolomiteCaMg(CO3)2
O HematiteFe2O3
O CalciteCaCO3
O FerrimolybditeFe2(MoO4)3 · nH2O
O GypsumCaSO4 · 2H2O
O MagnetiteFe2+Fe23+O4
MgMagnesium
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg DolomiteCaMg(CO3)2
AlAluminium
Al ClinochloreMg5Al(AlSi3O10)(OH)8
SiSilicon
Si QuartzSiO2
Si Quartz (var: Smoky Quartz)SiO2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
SSulfur
S TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
S ChalcociteCu2S
S MolybdeniteMoS2
S BaryteBaSO4
S MarcasiteFeS2
S BorniteCu5FeS4
S GypsumCaSO4 · 2H2O
S ChalcopyriteCuFeS2
S PyriteFeS2
S BismuthiniteBi2S3
S ArsenopyriteFeAsS
CaCalcium
Ca DolomiteCaMg(CO3)2
Ca CalciteCaCO3
Ca GypsumCaSO4 · 2H2O
FeIron
Fe SideriteFeCO3
Fe TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Fe Hematite (var: Specularite)Fe2O3
Fe Limonite(Fe,O,OH,H2O)
Fe HematiteFe2O3
Fe MarcasiteFeS2
Fe BorniteCu5FeS4
Fe FerrimolybditeFe2(MoO4)3 · nH2O
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe MagnetiteFe2+Fe23+O4
Fe ArsenopyriteFeAsS
CuCopper
Cu TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
Cu ChalcociteCu2S
Cu MalachiteCu2(CO3)(OH)2
Cu AzuriteCu3(CO3)2(OH)2
Cu BorniteCu5FeS4
Cu ChalcopyriteCuFeS2
ZnZinc
Zn TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
AsArsenic
As ArsenopyriteFeAsS
MoMolybdenum
Mo MolybdeniteMoS2
Mo FerrimolybditeFe2(MoO4)3 · nH2O
SbAntimony
Sb TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
BaBarium
Ba BaryteBaSO4
AuGold
Au GoldAu
BiBismuth
Bi BismuthBi
Bi BismuthiniteBi2S3

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Early Carboniferous
323.2 - 358.9 Ma



ID: 3192030
Paleozoic sedimentary rocks

Age: Mississippian (323.2 - 358.9 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Late Devonian
358.9 - 382.7 Ma



ID: 3161201
Old Red Sandstone

Age: Late Devonian (358.9 - 382.7 Ma)

Description: continental molasse

Lithology: Major:{sandstone}, Minor{conglomerate,claystone,siltstone}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

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The Abandoned Mines of West Carbery - Promoters, Adventures and Miners (D. Cowman and T.A. Reilly)


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